92" is very small if you intend to sit at the opposite end of the room. For a 92" diagonal, about 80" wide, you want to be sitting at 10' for that 'center of the theater' effect.
At the back of the room, it would be like sitting several theaters behind the back row of your local theater. It is just not going to recreate that cinematic experience (but it will look good).
I would push those seats way up, and put a card table behind them, or go with a screen which is closer to 9' wide if you can if you have no other choices in the placement of the seats & screen.
There is no issue with projector placement in front of viewers as long as you keep the projector high and out of the viewers site lines to the screen. Which is really not an issue.